British Pound Forecast: GBP/USD Four-Week Rally Nears a Critical Hurdle 8 18 2026

British Pound Technical Forecast: GBP/USD Weekly Trade Levels

• GBP/USD is attempting a fourth consecutive weekly advance with the rally now approaching pivotal resistance.
• Weekly momentum is nearing its own resistance trigger, raising the stakes for the next close.
• A sustained break higher would strengthen the case for a broader upside extension, while rejection would increase the risk of near-term exhaustion.
• UK inflation and upcoming PMI data could provide the next catalyst for Sterling into the weekly close.
• Resistance 1.3591, 1.3648/85 (key), 1.3789- Support 1.3474 (key), 1.3410, 1.3305

Sterling is pressing to fresh multi-month highs after an outside-week reversal reignited the recovery from the July pullback. The advance has carried GBP/USD back toward a dense technical resistance zone where both price and momentum are approaching important inflection thresholds. With the rally now entering a more demanding phase, the weekly close should help determine whether buyers can sustain the advance or whether exhaustion risk begins to build into the latter half of August. Battle lines drawn on the GBP/USD weekly technical chart.

British Pound Price Chart – GBP/USD Weekly

Chart Prepared by Michael Boutros, Sr. Technical Strategist; GBP/USD on TradingView

Technical Outlook: In last month’s British Pound Weekly Forecast we noted that GBP/USD was approaching pivotal resistance, “with the near-term long-bias vulnerable below the yearly open.” The bulls failed to secure a breakout the following week with Sterling reversing more than 2% off the July high. The pullback was short-lived with an outside weekly reversal the very next week kickstarting a recovery of more than 2.2% to fresh multi-month highs.

GBP/USD Weekly RSI

The rally is now approaching resistance at the February trendline which converges on the 61.8% retracement of the yearly range at 1.3591. At the same time, weekly momentum is approaching a resistance trigger extending off last year’s high and a breach / weekly close above this resistance in price and momentum is needed to fuel a rally towards the next major technical consideration at the 2025 & 2026 high-week closes at 1.3648/85. Ultimately strength surpassing this mark would be needed to suggest a lager breakout is underway. Subsequent resistance objectives are eyed at the 2025 high at 1.3789 and the yearly high at 1.3870.

Initial weekly support now rests back with the yearly open at 1.3474 backed by the 52-week moving average (currently near ~1.3410), and the 61.8% retracement of the June rally at 1.3305. Losses below the yearly low-week close (LWC) / 38.2% retracement of the 2025 advance at 1.3194 would be needed suggest a larger reversal is underway and shift the broader technical focus lower.

Bottom line: GBP/USD is approaching pivotal Fibonacci resistance at multi-month highs. Risk for topside exhaustion / price inflection. From a trading standpoint, look to reduce long-exposure / raise protective stops on a stretch towards 1.3591- losses should be limited to the 1.3474 IF price is heading for a breakout on this stretch with a topside breach needed to fuel a rally towards the yearly high-close.

Keep in mind we get the release of UK CPI tomorrow with key PMI data on tap from both counterparts into the close of the week. Watch the weekly close for guidance here. I’ll publish an updated British Pound Short-term Outlook once we get further clarity on the near-term GBP/USD technical trade levels.

GBP/USD Economic Data Releases

Economic Calendar - latest economic developments and upcoming event risk.

 

--- Written by Michael Boutros, Senior Technical Strategist

Follow Michael on X @MBForex